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Search: id:A105939
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| 20, 140, 560, 1680, 4200, 9240, 18480, 34320, 60060, 100100, 160160, 247520, 371280, 542640, 775200, 1085280, 1492260
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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If n=0 then C(0+3,0)*C(0+6,3)= C(3,0)*C(6,3)=1*20=20.
If n=8 then C(8+3,8)*C(8+6,3)= C(11,8)*C(14,3)=165*364=60060
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CROSSREFS
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Cf. A062145.
Sequence in context: A105573 A140301 A134382 this_sequence A054389 A071816 A094171
Adjacent sequences: A105936 A105937 A105938 this_sequence A105940 A105941 A105942
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KEYWORD
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easy,nonn
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AUTHOR
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Zerinvary Lajos (zlaja(AT)freemail.hu), Apr 27 2005
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